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Mikael Pettersson 3f6aa0b113 sparc32: unbreak arch_write_unlock() ... The sparc32 version of arch_write_unlock() is just a plain assignment. Unfortunately this allows the compiler to schedule side-effects in a protected region to occur after the HW-level unlock, which is broken. E.g., the following trivial test case gets miscompiled: #include <linux/spinlock.h> rwlock_t lock; int counter; void foo(void) { write_lock(&lock); ++counter; write_unlock(&lock); } Fixed by adding a compiler memory barrier to arch_write_unlock(). The sparc64 version combines the barrier and assignment into a single asm(), and implements the operation as a static inline, so that's what I did too. Compile-tested with sparc32_defconfig + CONFIG_SMP=y. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>		14 years ago
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Kbuild	sparc: use kbuild-generic support for true asm-generic header files	14 years ago
agp.h	…
apb.h	…
apc.h	…
asi.h	…
asm-offsets.h	…
asm.h	…
asmmacro.h	…
atomic.h	…
atomic_32.h	atomic: cleanup asm-generic atomic*.h inclusion	14 years ago
atomic_64.h	atomic: cleanup asm-generic atomic*.h inclusion	14 years ago
auxio.h	…
auxio_32.h	…
auxio_64.h	…
auxvec.h	…
backoff.h	sparc64: Make lock backoff really a NOP on UP builds.	15 years ago
bbc.h	…
bitext.h	…
bitops.h	…
bitops_32.h	bitops: remove minix bitops from asm/bitops.h	14 years ago
bitops_64.h	sparc: Use popc when possible for ffs/__ffs/ffz.	14 years ago
bitsperlong.h	…
btext.h	…
btfixup.h	…
bug.h	…
bugs.h	…
byteorder.h	…
cache.h	…
cacheflush.h	…
cacheflush_32.h	…
cacheflush_64.h	…
chafsr.h	…
checksum.h	…
checksum_32.h	…
checksum_64.h	…
chmctrl.h	…
clock.h	…
cmt.h	…
compat.h	compat: Make compat_alloc_user_space() incorporate the access_ok()	15 years ago
compat_signal.h	…
contregs.h	…
cpudata.h	…
cpudata_32.h	sparc32: implement SMP IPIs using the generic functions	14 years ago
cpudata_64.h	…
cputime.h	…
current.h	…
cypress.h	…
dcr.h	…
dcu.h	…
delay.h	…
delay_32.h	…
delay_64.h	…
device.h	…
display7seg.h	…
dma-mapping.h	dma-mapping: remove dma_is_consistent API	15 years ago
dma.h	…
ebus_dma.h	…
ecc.h	…
eeprom.h	…
elf.h	…
elf_32.h	…
elf_64.h	sparc: Sanitize cpu feature detection and reporting.	14 years ago
emergency-restart.h	…
envctrl.h	…
errno.h	mm: make __get_user_pages return -EHWPOISON for HWPOISON page optionally	14 years ago
estate.h	…
fb.h	sparc: Really fix "console=" for serial consoles.	15 years ago
fbio.h	…
fcntl.h	vfs: add nonconflicting values for O_PATH	14 years ago
fhc.h	…
fixmap.h	…
floppy.h	…
floppy_32.h	sparc: Remove unnecessary semicolons	14 years ago
floppy_64.h	sparc: Remove unnecessary semicolons	14 years ago
fpumacro.h	…
ftrace.h	…
futex.h	…
futex_32.h	…
futex_64.h	futex: Sanitize futex ops argument types	14 years ago
gpio.h	…
hardirq.h	…
hardirq_32.h	…
hardirq_64.h	…
head.h	…
head_32.h	…
head_64.h	…
highmem.h	mm: stack based kmap_atomic()	15 years ago
hugetlb.h	…
hvtramp.h	…
hw_irq.h	…
hypervisor.h	sparc: Set reboot-cmd using reboot data hypervisor call if available.	14 years ago
ide.h	…
idprom.h	…
intr_queue.h	…
io-unit.h	…
io.h	sparc: add {read,write}*_be routines	14 years ago
io_32.h	fbmem: fix fb_read, fb_write unaligned accesses	14 years ago
io_64.h	fbmem: fix fb_read, fb_write unaligned accesses	14 years ago
ioctl.h	…
ioctls.h	tty: add TIOCVHANGUP to allow clean tty shutdown of all ttys	14 years ago
iommu.h	…
iommu_32.h	…
iommu_64.h	…
ipcbuf.h	…
irq.h	…
irq_32.h	sparc32: genirq support	14 years ago
irq_64.h	sparc: Provide NO_IRQ definition.	14 years ago
irqflags.h	…
irqflags_32.h	sparc/irqs: Do not trace arch_local_{*,irq_*} functions	14 years ago
irqflags_64.h	sparc/irqs: Do not trace arch_local_{*,irq_*} functions	14 years ago
jsflash.h	…
jump_label.h	jump label: Introduce static_branch() interface	14 years ago
kdebug.h	…
kdebug_32.h	…
kdebug_64.h	…
kgdb.h	…
kmap_types.h	…
kprobes.h	…
ldc.h	…
leon.h	sparc32,leon: add GRPCI2 PCI Host driver	14 years ago
leon_amba.h	SPARC/LEON: power down instruction different of different LEONs	14 years ago
leon_pci.h	PCI: Make the struct pci_dev * argument of pci_fixup_irqs const.	14 years ago
linkage.h	…
lsu.h	…
machines.h	…
mbus.h	…
mc146818rtc.h	…
mc146818rtc_32.h	…
mc146818rtc_64.h	…
mdesc.h	…
memblock.h	…
memctrl.h	…
memreg.h	…
mman.h	…
mmu.h	…
mmu_32.h	sparc32: add irq + smp declarations to headers	14 years ago
mmu_64.h	…
mmu_context.h	…
mmu_context_32.h	…
mmu_context_64.h	…
mmzone.h	Fix node_start/end_pfn() definition for mm/page_cgroup.c	14 years ago
module.h	…
mpmbox.h	…
msgbuf.h	…
msi.h	…
mutex.h	…
mxcc.h	…
nmi.h	…
ns87303.h	Fix common misspellings	14 years ago
obio.h	…
openprom.h	sparc: Pass buffer pointer all the way down to prom_{get,put}char().	14 years ago
openpromio.h	…
oplib.h	…
oplib_32.h	sparc: fix sparse warnings in arch/sparc/prom for 32 bit build	14 years ago
oplib_64.h	sparc: Eliminate prom_stdin.	14 years ago
page.h	…
page_32.h	…
page_64.h	…
param.h	…
parport.h	dt/sparc: Eliminate users of of_platform_{,un}register_driver	14 years ago
pbm.h	…
pci.h	…
pci_32.h	Merge branch 'of-pci' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	14 years ago
pci_64.h	pci/of: Consolidate pci_device_to_OF_node()	14 years ago
pcic.h	sparc32: added CONFIG_PCIC_PCI Kconfig setting	14 years ago
pcr.h	Fix common misspellings	14 years ago
percpu.h	…
percpu_32.h	…
percpu_64.h	…
perf_event.h	perf, arch: Cleanup perf-pmu init vs lockup-detector	14 years ago
perfctr.h	…
pgalloc.h	…
pgalloc_32.h	…
pgalloc_64.h	sparc64: use RCU page table freeing	14 years ago
pgtable.h	…
pgtable_32.h	sparc32: avoid build warning at mm/percpu.c:1647	14 years ago
pgtable_64.h	sparc64: add support for _PAGE_SPECIAL	14 years ago
pgtsrmmu.h	…
pgtsun4.h	…
pgtsun4c.h	…
pil.h	…
poll.h	…
posix_types.h	…
processor.h	…
processor_32.h	…
processor_64.h	…
prom.h	atomic: use <linux/atomic.h>	14 years ago
psr.h	…
psrcompat.h	…
pstate.h	…
ptrace.h	ptrace: unify show_regs() prototype	14 years ago
resource.h	…
ross.h	…
rwsem.h	rwsem: Move duplicate function prototypes to linux/rwsem.h	14 years ago
sbi.h	…
scatterlist.h	…
scratchpad.h	…
seccomp.h	…
sections.h	…
sembuf.h	…
serial.h	…
setup.h	sparc32: always define boot_cpu_id	14 years ago
sfafsr.h	…
sfp-machine.h	…
sfp-machine_32.h	…
sfp-machine_64.h	…
shmbuf.h	…
shmparam.h	…
shmparam_32.h	…
shmparam_64.h	…
sigcontext.h	…
siginfo.h	…
signal.h	…
smp.h	…
smp_32.h	atomic: use <linux/atomic.h>	14 years ago
smp_64.h	atomic: use <linux/atomic.h>	14 years ago
smpprim.h	…
socket.h	…
sockios.h	…
sparsemem.h	…
spinlock.h	…
spinlock_32.h	sparc32: unbreak arch_write_unlock()	14 years ago
spinlock_64.h	sparc64: remove unnecessary macros from spinlock_64.h	14 years ago
spinlock_types.h	…
spitfire.h	sparc: Add T3 sun4v cpu type and hypervisor group defines.	14 years ago
stacktrace.h	…
starfire.h	…
stat.h	…
statfs.h	…
string.h	…
string_32.h	…
string_64.h	…
sunbpp.h	…
swab.h	…
swift.h	…
syscall.h	…
syscalls.h	…
sysen.h	…
system.h	…
system_32.h	sparc: Remove unnecessary semicolons	14 years ago
system_64.h	sparc: Remove unnecessary semicolons	14 years ago
termbits.h	tty: Add EXTPROC support for LINEMODE	15 years ago
termios.h	…
thread_info.h	…
thread_info_32.h	mm: NUMA aware alloc_thread_info_node()	14 years ago
thread_info_64.h	mm: NUMA aware alloc_thread_info_node()	14 years ago
timer.h	…
timer_32.h	…
timer_64.h	…
timex.h	…
timex_32.h	…
timex_64.h	…
tlb.h	…
tlb_32.h	…
tlb_64.h	sparc: mmu_gather rework	14 years ago
tlbflush.h	…
tlbflush_32.h	…
tlbflush_64.h	sparc: mmu_gather rework	14 years ago
topology.h	…
topology_32.h	…
topology_64.h	sched, sparc64: Turn cpu_coregroup_mask() into a real function	14 years ago
trap_block.h	…
traps.h	…
tsb.h	sparc: Access kernel TSB using physical addressing when possible.	14 years ago
tsunami.h	…
ttable.h	…
turbosparc.h	…
types.h	remove dma64_addr_t	14 years ago
uaccess.h	…
uaccess_32.h	…
uaccess_64.h	…
uctx.h	…
unaligned.h	…
unistd.h	ns: Wire up the setns system call	14 years ago
upa.h	…
user.h	…
utrap.h	…
vac-ops.h	…
vaddrs.h	…
vga.h	…
viking.h	…
vio.h	…
visasm.h	…
watchdog.h	…
winmacro.h	sparc32,leon: added some SMP comments	14 years ago
xor.h	…
xor_32.h	…
xor_64.h	sparc: Detect and handle UltraSPARC-T3 cpu types.	14 years ago